activity
19982012
most citedChandra Observations of Extended X-ray Emission in Arp 220

77 citations · 239 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.CO2012★ 32 cited

Merging Galaxy Clusters: Offset Between the Sunyaev-Zel'dovich Effect and X-ray Peaks

Sandor M. Molnar, Nathan C. Hearn, Joachim G. Stadel

Galaxy clusters, the most massive collapsed structures, have been routinely used to determine cosmological parameters. When using clusters for cosmology, the crucial assumption is…

astro-ph.CO2010★ 9 cited

Constraining Intra-cluster Gas Models with AMiBA13

Sandor M. Molnar, Keiichi Umetsu, Mark Birkinshaw +12

Clusters of galaxies have been used extensively to determine cosmological parameters. A major difficulty in making best use of Sunyaev-Zel'dovich (SZ) and X-ray observations of clu…

astro-ph.CO2010★ 29 cited

Testing Strict Hydrostatic Equilibrium in Simulated Clusters of Galaxies: Implications to Abell 1689

S. M. Molnar, I. -N. Chiu, K. Umetsu +5

Accurate mass determination of clusters of galaxies is crucial if they are to be used as cosmological probes. However, there are some discrepancies between cluster masses determine…

astro-ph.CO2009★ 70 cited

Accretion Shocks in Clusters of Galaxies and their SZ Signature from Cosmological Simulations

Sandor M. Molnar, Nathan Hearn, Zoltán Haiman +3

Cold dark matter (CDM) hierarchical structure formation models predict the existence of large-scale accretion shocks between the virial and turnaround radii of clusters of galaxies…

astro-ph2005

Eclipse Prediction and Orbit Improvement for Asteroids: Theory and Application to Near Earth Asteroids

P. Tricarico, N. C. Hearn, G. Lake +1

Asteroids can be eclipsed by other bodies in the Solar System, but no direct observation of an asteroid eclipse has been reported to date. We describe a statistical method to predi…

astro-ph2003★ 2 cited

Collisions and Mergers of Disk Galaxies: Hydrodynamics of Star Forming Gas

Susan A. Lamb, Nathan C. Hearn

We summarize the results of numerical simulations of colliding gas-rich disk galaxies in which the impact velocity is set parallel to the spin axes of the two galaxies. The effects…